(19)

(11)

EP 0 029 848 A1

(12)

(43) Date of publication: 10.06.1981 Bulletin 1981/23 (21) Application number: 80901257.0 (22) Date of filing: 06.06.1980

(51) International Patent Classification (IPC):  A61L 2/ 04( . ) (86) International application number: PCT/US1980/000705 (87) International publication number: WO 1980/002644 (11.12.1980 Gazette 1980/28)

(84) Designated Contracting States: FR (30) Priority: 08.06.1979 US 19790047529 (71) Applicant: GROFF, Raymond F. Wilkes Barre, PA 18705 (US)	(72) Inventor: GROFF, Raymond F. Wilkes Barre, PA 18705 (US)